diff --git a/requirements.txt b/requirements.txt
index b8d5955..a6db94c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ pyasn1==0.2.3
 pyasn1-modules==0.0.8
 pycparser==2.17
 PyDispatcher==2.0.5
-Pygments==2.2.0
+Pygments==2.7.4
 pyOpenSSL==16.2.0
 pyparsing==2.2.0
 python-dateutil==2.6.0